ACPI and device properties fixes for 6.1-rc3

- Fix the documentation of the *_match_string() family of functions to
    properly cover the return value (Andy Shevchenko).
 
  - Fix a possible integer overflow during multiplication in the ACPI
    PCC code (Manank Patel).
 
  - Make the ACPI device resources code skip IRQ override on Asus
    Vivobook S5602ZA (Tamim Khan).
 
  - Add LATT2021 to the list of device IDs that are ignored when
    returned by _DEP, because there are no drivers for them in the
    kernel and no plans to add such drivers (Hans de Goede).
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Merge tag 'acpi-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and device properties fixes from Rafael Wysocki:
 "These fix device properties documentation and the ACPI PCC code, add a
  new IRQ override quirk for resource handling and add one more item to
  the list of device IDs to be ignored when returned by _DEP.

  Specifics:

   - Fix the documentation of the *_match_string() family of functions
     to properly cover the return value (Andy Shevchenko)

   - Fix a possible integer overflow during multiplication in the ACPI
     PCC code (Manank Patel)

   - Make the ACPI device resources code skip IRQ override on Asus
     Vivobook S5602ZA (Tamim Khan)

   - Add LATT2021 to the list of device IDs that are ignored when
     returned by _DEP, because there are no drivers for them in the
     kernel and no plans to add such drivers (Hans de Goede)"

* tag 'acpi-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
  ACPI: resource: Skip IRQ override on Asus Vivobook S5602ZA
  ACPI: PCC: Fix unintentional integer overflow
  device property: Fix documentation for *_match_string() APIs

drivers/acpi/acpi_pcc.c

@@ -27,7 +27,7 @@
  * Arbitrary retries in case the remote processor is slow to respond
  * to PCC commands
  */
-#define PCC_CMD_WAIT_RETRIES_NUM	500
+#define PCC_CMD_WAIT_RETRIES_NUM	500ULL
 
 struct pcc_data {
 	struct pcc_mbox_chan *pcc_chan;

drivers/acpi/resource.c

@@ -425,6 +425,13 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "S5402ZA"),
 		},
 	},
+	{
+		.ident = "Asus Vivobook S5602ZA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "S5602ZA"),
+		},
+	},
 	{ }
 };
 

drivers/acpi/scan.c

@@ -789,6 +789,7 @@ static bool acpi_info_matches_ids(struct acpi_device_info *info,
 static const char * const acpi_ignore_dep_ids[] = {
 	"PNP0D80", /* Windows-compatible System Power Management Controller */
 	"INT33BD", /* Intel Baytrail Mailbox Device */
+	"LATT2021", /* Lattice FW Update Client Driver */
 	NULL
 };
 

drivers/base/property.c

@@ -229,7 +229,7 @@ EXPORT_SYMBOL_GPL(device_property_read_string);
  * Find a given string in a string array and if it is found return the
  * index back.
  *
- * Return: %0 if the property was found (success),
+ * Return: index, starting from %0, if the property was found (success),
  *	   %-EINVAL if given arguments are not valid,
  *	   %-ENODATA if the property does not have a value,
  *	   %-EPROTO if the property is not an array of strings,
@@ -450,7 +450,7 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_string);
  * Find a given string in a string array and if it is found return the
  * index back.
  *
- * Return: %0 if the property was found (success),
+ * Return: index, starting from %0, if the property was found (success),
  *	   %-EINVAL if given arguments are not valid,
  *	   %-ENODATA if the property does not have a value,
  *	   %-EPROTO if the property is not an array of strings,